Restructuring Charges (Restructuring Reserve) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Restructuring Reserve [Roll Forward]
Beginning balance	$ 8,088	$ 7,782	$ 8,830	$ 2,955
Accruals for efficiency initiatives	(4)	0	(4)	8,047
Payments	(707)	(1,480)	(1,449)	(4,700)
Ending balance	7,377	6,302	7,377	6,302
Severance Charges [Member]
Restructuring Reserve [Roll Forward]
Beginning balance	2,770	7,688	3,291	1,572
Accruals for efficiency initiatives	0	0	0	8,047
Payments	(517)	(1,464)	(1,038)	(3,395)
Ending balance	2,253	6,224	2,253	6,224
Lease Termination Charges [Member]
Restructuring Reserve [Roll Forward]
Beginning balance	5,318	94	5,539	1,383
Accruals for efficiency initiatives	(4)	0	(4)	0
Payments	(190)	(16)	(411)	(1,305)
Ending balance	$ 5,124	$ 78	$ 5,124	$ 78